4PCS in 1 Set: The includes 4pcs bag sealers mini, enough to meet your needs and use it to help quickly sealing and cutting 2 in 1 Function: The " + " side is a heat sealer for sealing function, and the " - " side is a cutter for cutting function. You can use the bag resealer to re-seal the bag, keep your snacks and food , and reduce food waste How to Use: Please remove the hook, press and preheat the " + " side for 3-5 seconds before using, then it along the edge of bags to seal. If the bag is too thick, please try several times. And please press the " - " side and move slowly to open the bag Durable and Portable: Made of durable plastic material, the mini bag sealer is high quality and , you can easily put it into your bag or pocket. You can also use the hook to hang it on the cabinet ATTENTION: The 2 x AA batteries are not included, please install the batteries before using. If the battery power is insufficient, the sealing effect will be affected, so you should replace the batteries and use high-powered AA batteries. Colour:grey Material:ABS Package Contents: 4 x Sealer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.